3) Don’t look into the light: A 3.4 mW laser has a beam diameter of 5.0 mm. Assume it has uniform intensity. a) What is the total power that shines into the pupil of an eye with a diameter of 3.0 mm if it is completely illuminated by the laser shining at normal incidence? b)What distance would the pupil have to be from a 100W light bulb for this same total power to be received? (Assume normal incidence.)
3) Don’t look into the light: A 3.4 mW laser has a beam diameter of 5.0 mm. Assume it has uniform intensity. a) What is the total power that shines into the pupil of an eye with a diameter of 3.0 mm if it is completely illuminated by the laser shining at normal incidence? b)What distance would the pupil have to be from a 100W light bulb for this same total power to be received? (Assume normal incidence.)
Chapter16: Electromagnetic Waves
Section: Chapter Questions
Problem 102AP: Lunar astronauts placed a reflector on the Moon’s surface, off which a laser beam is periodically...
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3) Don’t look into the light: A 3.4 mW laser has a beam diameter of 5.0 mm. Assume it has uniform intensity.
a) What is the total power that shines into the pupil of an eye with a diameter of 3.0 mm if it is completely illuminated by the laser shining at normal incidence?
b)What distance would the pupil have to be from a 100W light bulb for this same total power to be received? (Assume normal incidence.)
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